Xanthidium tubiferum var. palmatum Appendix A

"var. palmatum" White, 1842, p.39-40, pl.4, fig.12.  Holotype: White, 1842, pl.4, fig.12.  Originally Xanthidium tubiferum var. palmatum, subsequently Xanthidium palmatum (Appendix A), thirdly Spiniferites palmatus, fourthly Cordosphaeridium palmatum, fifthly Hystrichosphaeridium palmatum (combination illegitimate), sixthly Hystrichosphaeridium duplum (name illegitimate).  Nomenclatural senior synonym: Xanthidium tubiferum var. recurvatum (as Hystrichosphaeridium recurvatum), which has the same holotype.  Nomenclatural junior synonyms: Xanthidium tubiferum var. palmaforme and Hystrichosphaeridium duplum, both of which have the same holotype as Hystrichosphaeridium palmatum.  This is not an illegitimate name.  For a full discussion, see Hystrichosphaeridium recurvatum.  Age: Senonian. Parent: Xanthidium tubiferum